523123151 has 2 divisors, whose sum is σ = 523123152. Its totient is φ = 523123150.

The previous prime is 523123147. The next prime is 523123169. The reversal of 523123151 is 151321325.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 523123151 - 2² = 523123147 is a prime.

It is a super-2 number, since 2×523123151² = 547315662224337602, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (523123121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261561575 + 261561576.

It is an arithmetic number, because the mean of its divisors is an integer number (261561576).

Almost surely, 2^523123151 is an apocalyptic number.

523123151 is a deficient number, since it is larger than the sum of its proper divisors (1).

523123151 is an equidigital number, since it uses as much as digits as its factorization.

523123151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 900, while the sum is 23.

The square root of 523123151 is about 22871.8856021973. The cubic root of 523123151 is about 805.7518539220.

Adding to 523123151 its reverse (151321325), we get a palindrome (674444476).

It can be divided in two parts, 5231 and 23151, that added together give a palindrome (28382).

The spelling of 523123151 in words is "five hundred twenty-three million, one hundred twenty-three thousand, one hundred fifty-one".